main.c

内含24位AD的ADUC834单片机使用例程

#include <ADuC834.h>
#include <STDIO.h>
#include <STRING.h>
sbit   wdt= P1^0;
main(void)
{   unsigned char rec,i,j=0;
    unsigned char adstr[10];
   
	union
	{
	     unsigned long  ad;
		 unsigned char byte[4];
	}adtmp;
     T3CON=0x82;
     T3FD=0x12;
     SCON=0x50;
	 SF=0x45;
	 ADC0CON=0x4f;
	 ADCMODE=0x20;
   while(1)
      {  wdt=~wdt;
	     // while(!RI);
         while(1)
		 {
            if(RI==1) break;
            wdt=~wdt;   
         }
         RI=0;
         rec=SBUF;
         switch(rec)
		 {
          case '1':
                P2=(P2&0xf8)|0x03;
				
                break;
          case '2':
                P2=(P2&0xf8)|0x00;
                break;
          case '3':
                P2=(P2&0xf8)|0x01;
                break;
          case '4':
                P2=(P2&0xf8)|0x02;
                break;
          case '5':
                P2=(P2&0xf8)|0x05;
          } 
     	  while(j<100) j++;
		  j=0;
          ADCMODE=0x22;
		 // while(!RDY0);
		 while(1)
		 {
		    if (RDY0==1) break;
			wdt=~wdt;
		 }
		  RDY0=0;
		  adtmp.byte[3]=ADC0L;
		  adtmp.byte[2]=ADC0M;
		  adtmp.byte[1]=ADC0H;
		  sprintf(adstr,"%ld\n",adtmp.ad);
		  for(i=0;i<strlen(adstr);i++)
          {
		     SBUF=*(adstr+i);
		//	 while(!TI);
		     while(1)
			 {
			    if (TI==1) break;
				wdt=~wdt;
			 }
			 TI=0;
		  }
         
          
       }

}